I recently made a concerted effort to notify Google Map Maker of serious boundary errors along the Utah-Idaho Border. These errors in Google Map Maker show the boundary .4 miles further to the north than is actually the cases... I was not particularly bothered about the local state line, but when I panned 120 miles to the west... where I-15 crosses the Utah Idaho Border, the border was still in error. All efforts to notify Google that although Google Earth showed approximately the correct state line, Google Map Maker showed the same state line in Error. OSM has the courtesy, and responsibility in that it shows also the County lines, which in these areas conflict with the State Lines. Of course, all GIS user, know about choosing between data sets. I have compiled a document containing responses from Google 'Trusted' reviewers, along with screen captures from Google Map Maker, Google Earth, Bing, Virtual Earth, Yahoo, and OSM.